Improvement in spring-setting machines



UNITED STATES PATENT OFFICE.

ASA J. FISK, OF AKRON, OHIO, ASSIGNOR OF ONE-HALF HIS RIGHT TO y HENRY H. RUGG, OF SAME PLAGE.

IMPROVEMENT IN SPRING-SETTING MACHINES.

Specification forming part of Letters Patent No. l 65,087, dated June Q9, 1875; applicaiion filed May 2o, 1875.

To all whom it may concern:

Be it known that I, ASA J. FISK, of Akron, in the county of Summit and State of Ohio, haveinvented an Improved Spring-Setting Machine, of which the following is a specitication:

The object of my invention is to rapidly and accurately tit or set the outer leaves ot' car riage-springs, while hot, to the longinner leaf, after the latter shall have been bent to the desired shape, by means of grooved steel rollers, arranged to approach each other and tirmly grasp in the grooves the edges ot the cold and hot leaves of the spring, while t-he machineis caused to traverse the length ot' the spring, compressing the hot leat against the cold one.

In the manufacture ot' such springs the long inner leaf is tirst bent, by hammering or other method, to the desired curve. It is then, when cold, placed upon a suitable table with the concave side downward, the center supported by an upright post, and the ends sprung downward beyond the natural position otl the spring and attached to` the table. The next leaf is then, while red hot, placed thereon, and, by means ot' pinchers or bendingtongs, bent down to conform to the shape of the long leaf".

My invention is fully shown in the accom panying drawing, wherein Figure l is a plan, and Fig. 2 a side View, of my spring-setting machine,l a portion thereof being shown in section, and also illustrates the operation of the same.

A B are two levers, terminating in suitable handles at their outer ends, and connected by a hinge-joint. In each lever is a slot, through which passes a bolt, D D, which holds in place and forms a journal for the grooved wheels E E', these latter preferably made of -hardened steel. The object of the slot is to allow the space between the wheels to be adjusted to the width of the spring. The slotted plaies C Cf, held by screws a a', are also used to regulate this space, by holding the wheel in place while tightening the bolts D` D', and may be graduated, as shown, to facilitate the object. For convenience, a stud, S,

prevents the machine from folding, allowing only enough motion to accomplish the desired end.

' To use the machine, one handle is taken in either hand, the wheels downward,| and the proper distance apart. The first leaf being in position, the hot leaf is placed thereon. The machine is then held crosswise over the spring, and the handles bent down until the grooved wheels grasp the edges ot' the two springs, as shown in Fig. 2, wherein U is a cross-section ot' the long leaf', and V of the hot leal". The 

